@abandonware/noble/test.custom.js

A Node.js BLE (Bluetooth Low Energy) central library.

const noble = require('./with-custom-binding')({ extended: true });

console.log('noble');

noble.on('stateChange', function (state) {
  console.log('on -> stateChange: ' + state);

  if (state === 'poweredOn') {
    noble.startScanning([], true);
  } else {
    noble.stopScanning();
  }
});

noble.on('scanStart', function () {
  console.log('on -> scanStart');
});

noble.on('scanStop', function () {
  console.log('on -> scanStop');
});

noble.on('discover', function (peripheral) {
  console.log('on -> discover: ' + peripheral);

  noble.stopScanning();

  peripheral.on('connect', function () {
    console.log('on -> connect');
    this.updateRssi();
  });

  peripheral.on('disconnect', function () {
    console.log('on -> disconnect');
  });

  peripheral.on('rssiUpdate', function (rssi) {
    console.log('on -> RSSI update ' + rssi);
    this.discoverServices();
  });

  peripheral.on('servicesDiscover', function (services) {
    console.log('on -> peripheral services discovered ' + services);

    const serviceIndex = 0;

    services[serviceIndex].on(
      'includedServicesDiscover',
      function (includedServiceUuids) {
        console.log(
          'on -> service included services discovered ' + includedServiceUuids
        );
        this.discoverCharacteristics();
      }
    );

    services[serviceIndex].on(
      'characteristicsDiscover',
      function (characteristics) {
        console.log(
          'on -> service characteristics discovered ' + characteristics
        );

        const characteristicIndex = 0;

        characteristics[characteristicIndex].on(
          'read',
          function (data, isNotification) {
            console.log(
              'on -> characteristic read ' + data + ' ' + isNotification
            );
            console.log(data);

            peripheral.disconnect();
          }
        );

        characteristics[characteristicIndex].on('write', function () {
          console.log('on -> characteristic write ');

          peripheral.disconnect();
        });

        characteristics[characteristicIndex].on('broadcast', function (state) {
          console.log('on -> characteristic broadcast ' + state);

          peripheral.disconnect();
        });

        characteristics[characteristicIndex].on('notify', function (state) {
          console.log('on -> characteristic notify ' + state);

          peripheral.disconnect();
        });

        characteristics[characteristicIndex].on(
          'descriptorsDiscover',
          function (descriptors) {
            console.log('on -> descriptors discover ' + descriptors);

            const descriptorIndex = 0;

            descriptors[descriptorIndex].on('valueRead', function (data) {
              console.log('on -> descriptor value read ' + data);
              console.log(data);
              peripheral.disconnect();
            });

            descriptors[descriptorIndex].on('valueWrite', function () {
              console.log('on -> descriptor value write ');
              peripheral.disconnect();
            });

            descriptors[descriptorIndex].readValue();
            // descriptors[descriptorIndex].writeValue(new Buffer([0]));
          }
        );

        characteristics[characteristicIndex].read();
        // characteristics[characteristicIndex].write(new Buffer('hello'));
        // characteristics[characteristicIndex].broadcast(true);
        // characteristics[characteristicIndex].notify(true);
        // characteristics[characteristicIndex].discoverDescriptors();
      }
    );

    services[serviceIndex].discoverIncludedServices();
  });

  peripheral.connect();
});